WSDL - Generic interface for anytype xml

 Generic interface for parent flow. The wsdl should support any type of payload:

<definitions xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" xmlns:wsp="http://www.w3.org/ns/ws-policy" xmlns:wsp1_2="http://schemas.xmlsoap.org/ws/2004/09/policy" xmlns:wsam="http://www.w3.org/2007/05/addressing/metadata" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tns="http://mock.service.com/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://schemas.xmlsoap.org/wsdl/" targetNamespace="http://mock.service.com/" name="EchoMultiOpsImplService">
  <types>
    <xs:schema xmlns:tns="http://mock.service.com/" xmlns:xs="http://www.w3.org/2001/XMLSchema" version="1.0" targetNamespace="http://mock.service.com/">
      <xs:element name="echoAny" type="tns:echoAnyType"/>
      <xs:element name="echoAnyResponse" type="tns:echoAnyType"/>
      <xs:complexType name="echoAnyType">
        <xs:sequence>
          <xs:element name="xml" type="xs:anyType"/>
        </xs:sequence>
      </xs:complexType>
    </xs:schema>
  </types>
  <message name="echoSingle">
    <part name="parameters" element="tns:echoAny"/>
  </message>
  <message name="echoSingleResponse">
    <part name="parameters" element="tns:echoAnyResponse"/>
  </message>
  <portType name="EchoAny">
    <operation name="echoAny">
        <input wsam:Action="http://mock.service.com/echoSingle" message="tns:echoSingle"/>
        <output wsam:Action="http://mock.service.com/echoSingleResponse" message="tns:echoSingleResponse"/>
    </operation>
  </portType>
</definitions>